A Web Guide to the Eucalypts
- Eucalyptus costata
Behr & F. Muell. ex F. Muell., Trans. Victorian Inst. 1: 33 (1855).
- TYPE: South Australia, Angaston, Behr, 12.1848 (lecto MEL 1552443; fide Hill et al. 2001, isolecto K). Cited as "Behr & Muell. Coll."; "In the Mallee scrub, from the Murray River to Spencer's Gulf."
- Eucalyptus incrassata subsp. costata
(Behr & F. Muell.) F.C. Johnston & Hall, Proc. Roy. Soc. Victoria n.s. 91: 204 (1980).
- Eucalyptus incrassata var. costata
(Behr & F. Muell.) N. Burb., Trans. & Proc. Roy. Soc. South Australia 71: 150 (1947).
Habit: Mallee, Height to 5 m high.
Bark: Bark smooth throughout, grey or grey-brown, shedding in long
ribbons. Branchlets green. Pith glands present; Bark glands present. Cotyledons
Leaves: Intermediate leaves disjunct early, elliptic to ovate,
straight, entire, dull grey green to dull green, petiolate, 10 cm long, 5 mm
wide. Adult leaves disjunct, lanceolate or broad lanceolate, not falcate, obtuse
or apiculate, basally tapered, glossy or semi-glossy, grey-green, thick,
concolorous, 611 cm long, 1.52.5 mm wide; Petioles narrowly
flattened or channelled, Petioles 1020 mm long. Lateral veins obscure,
acute, moderately spaced.
Inflorescences: Conflorescence simple, axillary; Umbellasters
3-flowered to 7-flowered, regular. Peduncles narrowly flattened or angular (to
3mm wide), 1320 mm long. Pedicels terete, 35 mm long.
Flowers: Buds cylindrical or fusiform, not glaucous or pruinose,
1220 mm long, 68 mm diam. Calyx calyptrate; shedding early. Calyptra
conical (often beaked), 2 times as long as hypanthium or 3 times as long as
hypanthium, as wide as hypanthium; smooth, or ribbed. Hypanthium smooth, or
ribbed. Flowers cream.
Fruits: Fruits cylindrical or urceolate (slightly), pedicellate,
34 locular, 813 mm long, 711 mm diam. Disc depressed. Valves
enclosed. Chaff dimorphic, linear and cuboid, chaff same colour as seed.
Occurrence: Locally frequent; mallee shrubland on red aeolian sands.
Distribution: S.A., or N.S.W., or Vic. N.S.W. regions South Western
Plains, or South Far Western Plains.